import Vue from 'vue'
        //element select滚动加载
Vue.directive('loadmore', {
  bind (el, binding) {
    const DomClass = el.querySelector(binding.value.domName)
    const SELECTWRAP_DOM = DomClass.querySelector('.el-select-dropdown .el-select-dropdown__wrap')
    SELECTWRAP_DOM.addEventListener('scroll', function () {
    
    const CONDITION = this.scrollHeight - this.scrollTop <= this.clientHeight
        if (CONDITION) {
            binding.value.scollBottomFuc()
        }
    })
  }
})